<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>

  <div id="app">
    <h2>{{message}}</h2>
    <ul>
      <li v-for="(name,index) in names" :key="name">{{(index+1) + '-' + name}}</li>
    </ul>
  </div>

<!-- 开发环境版本，包含了有帮助的命令行警告 -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>

<script>
  const app = new Vue({
    el: "#app",
    data: {
      message: "hello world !",
      names: ['why','kobe','james','curry']
    },
    methods: {

    }
  })

</script>


</body>
</html>